EXAMPLES FROM THE WEB FOR OPERA HAT
The ordinary "plug hat" was known to these people, but not an opera hat.
He had told her that the box was hidden in an opera hat, in one corner of the room.
When he had gone I went into my bedroom and made a pile of my opera hat.
He was in evening dress, and an opera hat was set rakishly on the back of his head.
He had felt uneasy with the very servant who gave him his opera hat!
Alphonse picked up the opera hat, straightened it out and looked at it.
He had on an overcoat and an opera hat, but otherwise was dressed as for dinner.
Pour some water into a glass and cover it with an opera hat.
Stephen, standing by, folding and unfolding his opera hat, smiled.
Austin Ambrose made his way to her slowly, his opera hat under his arm, his clean-cut face serene and perfectly self-possessed.